I purchased these for my 11yo son following a suggestion from his physio after he developed a slight quad strain. Since wearing these to play Rep basketball his quad strain has eased and meant he could keep training and playing. They have also added an extra layer of warmth during winter. He loves them including loving the look. They do run very small, we had to go to a Men’s Medium after starting off thinking a Youth Large would fit based on the size guide. We then tried on Youth XL, Men’s XS and S before finding the Men’s M as the right fit - my 11yo is 153cm tall and is slim and athletic so having to go up so many sizes was a surprise as he’s normally in a Youth Large for shorts/ bottoms in all the major sporting brands.